CN112342047A - Bamboo tar refining process - Google Patents
Bamboo tar refining process Download PDFInfo
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- CN112342047A CN112342047A CN202011185357.3A CN202011185357A CN112342047A CN 112342047 A CN112342047 A CN 112342047A CN 202011185357 A CN202011185357 A CN 202011185357A CN 112342047 A CN112342047 A CN 112342047A
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- solution
- bamboo
- bamboo tar
- stock solution
- tar
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C1/00—Working-up tar
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C5/00—Production of pyroligneous acid distillation of wood, dry distillation of organic waste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Abstract
The invention discloses a bamboo tar refining process, which comprises the following steps: collecting smoke generated in the bamboo carbonization process; cooling the smoke to obtain a bamboo tar stock solution; taking a preset amount of sample liquid from the bamboo tar stock solution; treating the sample liquid to reduce bamboo tar and impurities in the sample liquid; standing the sample solution for a first time period to divide the sample solution into two layers of solutions; wherein the upper layer solution of the sample solution is bamboo vinegar solution, and the lower layer solution of the sample solution is bamboo tar; detecting the density of the upper layer solution of the sample solution to obtain a first density; standing the bamboo tar stock solution to divide the bamboo tar stock solution into two layers of solution; when the density of the upper layer solution of the bamboo tar stock solution reaches a first density, carrying out liquid separation on the bamboo tar stock solution to obtain a lower layer solution of bamboo tar stock solution; weighing and packaging the lower-layer solution of the bamboo tar stock solution. The invention simultaneously ensures the yield of the bamboo tar and the production rate of the bamboo vinegar.
Description
Technical Field
The invention relates to the field of bamboo processing, in particular to a bamboo tar refining process.
Background
The bamboo tar is a product obtained by pyrolyzing bamboo, has high adsorbability, and can deodorize and sterilize. Bamboo tar is commonly used as wood preservative, deodorant, dermatitis medicine, etc. Because of the functionality of the bamboo tar, more and more attention is paid to the preparation and extraction of the bamboo tar in the industry at present.
Most of the existing methods for preparing and extracting the bamboo tar can keep the stock solution of the bamboo tar standing for a period of time to layer the bamboo vinegar solution and the bamboo tar. However, too short standing time can cause excessive bamboo tar in the bamboo vinegar liquid, so that the yield of the bamboo tar is reduced, and the impurity content of another product bamboo vinegar liquid is too much; too long standing time can greatly reduce the production rate of the bamboo tar. And because the varieties of bamboo wood are different, the combustion process is also different, so that a standard time is difficult to determine, and the yield of bamboo tar and the production rate of bamboo vinegar can be ensured simultaneously.
Disclosure of Invention
In view of some of the above-mentioned defects in the prior art, the present invention provides a bamboo tar refining process, which aims to ensure the yield of bamboo tar and the production rate of bamboo vinegar simultaneously.
In order to achieve the purpose, the invention provides a bamboo tar refining process, which comprises the following steps:
collecting smoke generated in the bamboo carbonization process;
cooling the smoke to obtain a bamboo tar stock solution;
taking a preset amount of sample liquid from the bamboo tar stock solution;
treating the sample liquid to reduce bamboo tar and impurities in the sample liquid;
standing the sample solution for a first period of time to separate the sample solution into two layers of solutions; wherein the upper layer solution of the sample solution is bamboo vinegar solution, and the lower layer solution of the sample solution is bamboo tar;
detecting the density of the upper layer solution of the sample solution to obtain a first density;
standing the bamboo tar stock solution to divide the bamboo tar stock solution into two layers of solution; wherein the upper layer solution of the bamboo tar stock solution is bamboo vinegar solution, and the lower layer solution of the bamboo tar stock solution is bamboo tar;
when the density of the upper layer solution of the bamboo tar stock solution reaches the first density, performing liquid separation on the bamboo tar stock solution to obtain a bamboo tar product;
and weighing and packaging the bamboo tar product.
Optionally, the processing the sample liquid to reduce bamboo tar and impurities in the sample liquid includes:
roughly filtering the sample liquid by using a first filter membrane to reduce bamboo tar and impurities in the sample liquid;
and performing fine filtration on the sample liquid by using a second filter membrane so as to reduce bamboo tar and impurities in the sample liquid subjected to coarse filtration.
Optionally, when the upper solution density of the bamboo tar stock solution reaches the first density, it is right that the bamboo tar stock solution divides liquid to obtain a bamboo tar product, including:
and when the density of the upper layer solution of the bamboo tar stock solution reaches the preset error value range of the first density, separating the bamboo tar stock solution to obtain a bamboo tar product.
Optionally, cooling the smoke to obtain a bamboo tar stock solution, comprising:
and (3) leading the smoke gas to pass through a condensing pipe, and liquefying the smoke gas to obtain the bamboo tar stock solution.
Optionally, the process further comprises:
and carrying out spontaneous combustion continuous dry distillation on the bamboo wood at a preset temperature so as to carbonize the bamboo wood.
Optionally, the initial standing time of the sample liquid is not earlier than the initial standing time of the bamboo tar stock solution.
Optionally, the first time length is less than the standing time length of the bamboo tar stock solution.
The invention has the beneficial effects that: taking a preset amount of sample liquid from the bamboo tar stock solution; treating the sample liquid to reduce bamboo tar and impurities in the sample liquid; standing the sample solution for a first period of time to separate the sample solution into two layers of solutions; and detecting the density of the upper layer solution of the sample solution to obtain a first density. According to the invention, a small amount of sample liquid is treated and stood, so that the bamboo tar in the sample liquid is greatly reduced, and the first density of the sample liquid is obtained. Because of the same density, the impurity content of the bamboo vinegar liquid is also the same. In addition, whether the bamboo tar is completely precipitated can be judged by judging the content of impurities in the upper layer bamboo vinegar. The invention combines the two points, and can judge whether the bamboo tar in the bamboo tar stock solution is completely precipitated or not by judging whether the density of the upper layer solution of the bamboo tar stock solution reaches or approaches to the first density. In conclusion, the density of the upper-layer solution of the bamboo tar stock solution is monitored in real time, and when the density of the upper-layer solution of the bamboo tar stock solution reaches or approaches to the first density, the lower-layer solution is separated, so that the bamboo tar product is obtained. Thus ensuring the yield of the bamboo tar and the production rate of the bamboo vinegar liquid at the same time.
Drawings
Fig. 1 is a schematic flow chart of a bamboo tar refining process according to an embodiment of the present invention.
Detailed Description
The invention discloses a bamboo tar refining process, which can be realized by appropriately improving technical details by taking the contents of the text as reference by a person skilled in the art. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
Most of the existing methods for preparing and extracting the bamboo tar can keep the stock solution of the bamboo tar standing for a period of time to layer the bamboo vinegar solution and the bamboo tar. However, too short standing time can cause excessive bamboo tar in the bamboo vinegar liquid, so that the yield of the bamboo tar is reduced, and the impurity content of another product bamboo vinegar liquid is too much; too long standing time can greatly reduce the production rate of the bamboo tar. The standing time is usually more than 48 hours, and occupies most of the time in the process of preparing and refining the bamboo tar. And because the varieties of bamboo wood are different, the combustion process is also different, so that a standard time is difficult to determine, and the yield of bamboo tar and the production rate of bamboo vinegar can be ensured simultaneously.
Therefore, an embodiment of the present invention provides a bamboo tar refining process, as shown in fig. 1, including:
step S101: collecting the smoke generated in the bamboo carbonization process.
The bamboo material may be longevity bamboo, arrow bamboo, four-season bamboo, mottled bamboo, etc. The method of externally connecting the pipeline is adopted to enable the smoke to enter the pipeline, so that the smoke is collected.
Optionally, the method further includes:
the bamboo is subjected to spontaneous combustion continuous dry distillation at a preset temperature to carbonize the bamboo.
Optionally, the auto-ignition continuous distillation of the bamboo to carbonize the bamboo comprises:
the bamboo material enters a drying area, a pre-carbonization area, a calcination area and a cooling area, and the bamboo material is completely carbonized through different environments of different areas.
The smoke generated in the bamboo carbonization process at least contains bamboo vinegar and bamboo tar.
And S102, cooling the smoke to obtain a bamboo tar stock solution.
Optionally, cooling the smoke to obtain a bamboo tar stock solution, comprising:
making the smoke gas pass through a condensing tube, and liquefying the smoke gas to obtain the bamboo tar stock solution.
The raw bamboo tar solution at least contains bamboo tar and bamboo vinegar solution. The temperature of the condensing pipe is lower than the liquefaction temperature of the bamboo tar stock solution.
Step S103: taking a preset amount of sample liquid from the bamboo tar stock solution.
It should be noted that the amount of the sample liquid taken out is much smaller than the amount of the bamboo tar stock solution.
Step S104: the sample liquid is treated to reduce bamboo tar and impurities in the sample liquid.
Optionally, the sample liquid is treated to reduce bamboo tar and impurities in the sample liquid, including:
roughly filtering the sample liquid by using a first filter membrane so as to reduce bamboo tar and impurities in the sample liquid;
and performing fine filtration on the sample liquid by using a second filter membrane to reduce bamboo tar and impurities in the sample liquid subjected to the coarse filtration.
The filter pores of the first filter membrane are large, so that large-particle impurities in the sample liquid can be preliminarily filtered, and excessive sample liquid cannot be lost. The filtration pores of the second filtration membrane are smaller than the filtration pores of the first filtration membrane, so that finer particle impurities in the sample liquid can be further filtered.
Step S105: standing the sample solution for a first time period to divide the sample solution into two layers of solutions; wherein the upper layer solution of the sample solution is bamboo vinegar solution, and the lower layer solution of the sample solution is bamboo tar.
It should be noted that the bamboo vinegar liquid and the residual bamboo tar in the sample liquid can be layered by standing for the first time period, and the length of the first time period is different according to the amount of the sample liquid. Generally 20min-60 min.
Step S106: and detecting the density of the upper layer solution of the sample solution to obtain a first density.
The purpose of steps 103 to 106 is to: and taking out a small amount of sample liquid, treating the sample liquid and standing to greatly reduce the bamboo tar and impurities in the upper solution of the sample liquid, thereby obtaining the first density of the upper solution of the sample liquid. Because of the same density, the impurity content of the bamboo vinegar liquid is also the same. In addition, whether the bamboo tar is completely precipitated can be judged by judging the content of impurities in the upper layer bamboo vinegar. By combining the two points, whether the bamboo tar in the bamboo tar stock solution is completely precipitated can be judged by judging whether the density of the upper layer solution of the bamboo tar stock solution reaches or approaches the first density. In addition, in the process of producing the bamboo vinegar, the standing time of the bamboo tar stock solution is usually more than 48 hours and is far longer than the first time, so the embodiment of the invention is feasible.
Step S107: standing the bamboo tar stock solution to divide the bamboo tar stock solution into two layers of solution; wherein the upper layer solution of the bamboo tar stock solution is bamboo vinegar solution, and the lower layer solution of the bamboo tar stock solution is bamboo tar.
It should be noted that the length of the standing time of the bamboo tar stock solution is related to the amount of the bamboo tar stock solution, and generally, the more the amount of the bamboo tar stock solution is, the longer the required standing time is.
And 108, when the density of the upper layer solution of the bamboo tar stock solution reaches the first density, performing liquid separation on the bamboo tar stock solution to obtain a bamboo tar product.
Optionally, when the upper solution density of bamboo tar stoste reaches first density, divide liquid to bamboo tar stoste, obtain bamboo tar product, include:
and when the density of the upper layer solution of the bamboo tar stock solution reaches the preset error value range of the first density, separating the bamboo tar stock solution to obtain a bamboo tar product.
In the embodiment of the invention, when the bamboo tar stock solution is slightly layered after standing, a densimeter is placed in the upper solution for monitoring the density of the upper solution in real time. Because the first density is not precisely achieved in the actual process, the invention considers that the first density is achieved as long as the monitored density is within a preset range above and below the first density. The container filled with bamboo tar stock solution can be a container with a closable opening at the lower end for separating bamboo tar and bamboo vinegar.
Step S109: and weighing and packaging the bamboo tar product.
It should be noted that the bamboo tar product is generally packaged in a sealed barreled manner.
Optionally, the initial standing time of the sample liquid is not earlier than the initial standing time of the bamboo tar stock solution.
When the sample liquid was taken from the bamboo tar stock solution, the bamboo tar stock solution was already allowed to stand. By doing so, the time can be effectively saved, and the extraction rate of the bamboo tar is improved.
Optionally, the first time length is less than the standing time length of the bamboo tar stock solution.
It should be noted that the present invention is only feasible when the first time period is shorter than the standing time period of the bamboo tar stock solution. Otherwise, the sample liquid is not kept still, and the bamboo tar stock solution is kept still, so that the upper solution of the bamboo tar stock solution cannot reach or approach the first density. The fact is that the sample liquid amount is very small, and the required standing time is far shorter than that of the bamboo tar stock solution.
In the embodiment of the invention, a preset amount of sample liquid is taken from the bamboo tar stock solution; treating the sample liquid to reduce bamboo tar and impurities in the sample liquid; standing the sample solution for a first time period to divide the sample solution into two layers of solutions; and detecting the density of the upper layer solution of the sample solution to obtain a first density. According to the embodiment of the invention, a small amount of sample liquid is treated and kept stand, so that the bamboo tar in the sample liquid is greatly reduced, and the first density of the sample liquid is obtained. Because of the same density, the impurity content of the bamboo vinegar liquid is also the same. In addition, whether the bamboo tar is completely precipitated can be judged by judging the content of impurities in the upper layer bamboo vinegar. The embodiment of the invention combines the two points, and can judge whether the bamboo tar in the bamboo tar stock solution is completely precipitated or not by judging whether the upper layer solution density of the bamboo tar stock solution reaches or approaches to the first density. In summary, in the embodiment of the present invention, the density of the upper layer solution of the bamboo tar raw solution is monitored in real time, and when the density of the upper layer solution of the bamboo tar raw solution reaches or approaches the first density, the lower layer solution is separated, so as to obtain the bamboo tar product. Thus ensuring the yield of the bamboo tar and the production rate of the bamboo vinegar liquid at the same time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. The bamboo tar refining process is characterized by comprising the following steps:
collecting smoke generated in the bamboo carbonization process;
cooling the smoke to obtain a bamboo tar stock solution;
taking a preset amount of sample liquid from the bamboo tar stock solution;
treating the sample liquid to reduce bamboo tar and impurities in the sample liquid;
standing the sample solution for a first period of time to separate the sample solution into two layers of solutions; wherein the upper layer solution of the sample solution is bamboo vinegar solution, and the lower layer solution of the sample solution is bamboo tar;
detecting the density of the upper layer solution of the sample solution to obtain a first density;
standing the bamboo tar stock solution to divide the bamboo tar stock solution into two layers of solution; wherein the upper layer solution of the bamboo tar stock solution is bamboo vinegar solution, and the lower layer solution of the bamboo tar stock solution is bamboo tar;
when the density of the upper layer solution of the bamboo tar stock solution reaches the first density, performing liquid separation on the bamboo tar stock solution to obtain a bamboo tar product;
and weighing and packaging the bamboo tar product.
2. The process of claim 1, wherein the treating the sample liquid to reduce bamboo tar and impurities in the sample liquid comprises:
roughly filtering the sample liquid by using a first filter membrane to reduce bamboo tar and impurities in the sample liquid;
and performing fine filtration on the sample liquid by using a second filter membrane so as to reduce bamboo tar and impurities in the sample liquid subjected to coarse filtration.
3. The process of claim 1, wherein when the upper solution density of the bamboo tar stock solution reaches the first density, separating the bamboo tar stock solution to obtain a bamboo tar product comprises:
and when the density of the upper layer solution of the bamboo tar stock solution reaches the preset error value range of the first density, separating the bamboo tar stock solution to obtain a bamboo tar product.
4. The process of claim 1, wherein said cooling said fumes to obtain a stock solution of bamboo tar comprises:
and (3) leading the smoke gas to pass through a condensing pipe, and liquefying the smoke gas to obtain the bamboo tar stock solution.
5. The process of claim 1, further comprising:
and carrying out spontaneous combustion continuous dry distillation on the bamboo wood at a preset temperature so as to carbonize the bamboo wood.
6. The process of claim 1, wherein the initial resting time of the sample liquid is not earlier than the initial resting time of the stock bamboo tar liquid.
7. The process according to claim 1, wherein the first period of time is less than the period of time during which the stock bamboo tar solution is allowed to stand.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011185357.3A CN112342047A (en) | 2020-10-30 | 2020-10-30 | Bamboo tar refining process |
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| CN202011185357.3A CN112342047A (en) | 2020-10-30 | 2020-10-30 | Bamboo tar refining process |
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| CN202011185357.3A Pending CN112342047A (en) | 2020-10-30 | 2020-10-30 | Bamboo tar refining process |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864064A (en) * | 2012-10-19 | 2013-01-09 | 江阴中利生物技术有限公司 | Production process for bamboo vinegar |
| CN107416826A (en) * | 2017-07-18 | 2017-12-01 | 成都新柯力化工科技有限公司 | A kind of coproduction prepares activated carbon from bamboo and bamboo vinegar, the method for bamboo tar |
| CN108865425A (en) * | 2018-07-10 | 2018-11-23 | 许瑜婧 | A kind of refining technique of bamboo wax oil |
-
2020
- 2020-10-30 CN CN202011185357.3A patent/CN112342047A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864064A (en) * | 2012-10-19 | 2013-01-09 | 江阴中利生物技术有限公司 | Production process for bamboo vinegar |
| CN107416826A (en) * | 2017-07-18 | 2017-12-01 | 成都新柯力化工科技有限公司 | A kind of coproduction prepares activated carbon from bamboo and bamboo vinegar, the method for bamboo tar |
| CN108865425A (en) * | 2018-07-10 | 2018-11-23 | 许瑜婧 | A kind of refining technique of bamboo wax oil |
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